• Welcome to the

    Snoqualmie Valley

    School District


    Submit your nomination to help name the new elementary school.  This opportunity to nominate a name will be open November 9 - December 6.


    Parent-Teacher conferences for grades K-12 will take place November 20, 23, 24, 25.  On these dates, schools will dismiss students per early release schedules.  Check with your school for specific conference times for parents to meet with teachers.

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Contact Us

  • Main Campus Office 

    Phone: 425.831.8100
    Attendance: 425.831.8200
    Counseling: 425.831.8150
    Athletics: 425.831.8103
    Hours: 7:00 - 3:30 p.m.

    Freshman Campus Office

    Phone: 425.831.8450
    Attendance: 425.831.8450
    Counseling: 425.831.8475
    Hours: 7:00 - 3:30 p.m.
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Welcome to MSHS

Mount Si High School is the sole comprehensive high school in the Snoqualmie Valley School District, serving approximately 1,600 students in grades 9-12. Opening in 1945, Mount Si High School offers a safe, positive learning environment with a comprehensive program to inspire learning and challenge students as they prepare for college and 21st Century careers. Students have access to rigorous college preparatory curriculum, exceptional career technical education programs, and a rich array of elective classes and extracurricular activities to expand their skills and interests.

School Profile

Mount Si High School Profile